The spiral structure of our galaxy  proceedings of the International Astronomical Union Symposium No.38 held in Basel, Switzerland August 29-September 4, 1964 
edited by W. Becker and G. Contopoulos                                                     
 - Dordrecht  D. Reidel Publishing  1970 
 - xiii, 478p. 
 - IAU Symposium; no. 38 .
<br/><br/> Donated by Mrs. Bappu 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Galaxy<br/>Spiral Galaxies<br/>Spiral Structure
<br/><br/><label>Universal Decimal Class. No.: </label>082.2:52  / IAU-38